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C121D Dodge Code - Brake Pressure Sensor Circuit

- Code Popularity: 12,934 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C121D Dodge?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Brake Master Cylinder
  • Faulty Brake Booster
  • Faulty Anti-Lock Brake System (ABS) Module
  • Anti-Lock Brake System (ABS) Module harness is open or shorted
  • Anti-Lock Brake System (ABS) Module circuit poor electrical connection
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How to Fix the DTC C121D Dodge?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C121D Dodge code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

Code C121D Dodge Description

The Anti-Lock Brake System (ABS) Module monitors the Brake Pressure Sensor. The ABS Module sets the OBDII code when the Brake Pressure Sensor is not to factory specifications.

OBDII Code C121D Dodge - Brake Pressure Sensor Circuit - AutoCodes.com
C121D Dodge Code - Brake Pressure Sensor Circuit

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Code C121D Dodge comments

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